November weather forecast
Cozumel, Mexico

The transition towards winter becomes evident in November, with a decrease in daylight and sunshine hours. The sea temperature cools down to 28°C (82.4°F), yet remains warm enough for water activities. Subtle shifts in humidity and UV index indicate the onset of the cooler, drier season. Contrastingly, November experiences a substantial amount of rainfall, with a total of 123mm (4.84") precipitation.

Temperature

A minor adjustment in Cozumel's average high-temperature is noted with the start of November, touching a moderately hot 29.7°C (85.5°F) from October's 30.7°C (87.3°F). Cozumel encounters a steady low-temperature average of 21.7°C (71.1°F) throughout the month of November.

Heat index

The heat index for November is calculated to be a very hot 38°C (100.4°F). Undertake special precautions, the probability of heat exhaustion and heat cramps is high. Prolonged activity may provoke heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. Exposure to direct sunlight may make the heat index values climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. This effect tends to be personal, with the weather perception differing among individuals due to variations in body mass, height, and exertion. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are essentially critical for children. Children often fail to recognize the requirement to rest and rehydrate. Thirst, being a late symptom of dehydration, underlines the importance of maintaining hydration, especially during ongoing physical activities.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In conditions of both high temperature and humidity (a high heat index), sweating is limited and the perception of heat is enhanced. Accumulating more heat than the body can dissipate leads to an uptick in body temperature, with potential heat stress consequences.

Humidity

In Cozumel, the average relative humidity in November is 83%.

Rainfall

In November, in Cozumel, the rain falls for 11.1 days. Throughout November, 123mm (4.84") of precipitation is accumulated. In Cozumel, during the entire year, the rain falls for 119.9 days and collects up to 1490mm (58.66") of precipitation.

Sea temperature

In November, the average sea temperature is 28°C (82.4°F).
Note: Swimming, diving, and other water-related activities in temperatures between 25°C (77°F) and 29°C (84.2°F) are considered highly enjoyable and satisfying for longer durations without uneasiness.

Daylight

In November, the average length of the day is 11h and 10min.
On the first day of the month, sunrise is at 6:49 am and sunset at 6:12 pm. On the last day of November, sunrise is at 7:06 am and sunset at 6:06 pm EST.

Sunshine

September and November, with an average of 6.1h of sunshine, are months with the least sunshine in Cozumel.

UV index

The average daily maximum UV index in November in Cozumel is 8. A UV Index of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV radiation for the ordinary person.
Note: In November, the average maximum UV index of 8 translates into the following recommendations:
Prioritize your safety. Without precautions, skin and eyes might get hurt quickly. Be aware that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. and try to reduce direct sun exposure during this period as much as possible. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Attention! UV radiation is ramped up when reflecting off sand and water surfaces.